And here we take a look back at the famous ‘Golf Balls’ that stood watch over the North Yorkshire Moors - near Whitby - until the early 90s.

In their place now is a pyramid structure, offering a similar early warning system - it aims to provide ‘an uninterrupted missile warning service’.

“Since January 1963 the tracker radars in the famous ‘Golf Balls’ perched amid the bleak North Yorkshire Moors had quietly performed a vital role of helping to keep the peace,” says the RAF Fylingdales website.

Adding: “In 1992 the Golf Balls were replaced by the Solid State Phased Array Radar, a giant ‘Pyramid’, one of the most sophisticated radars in the worldwide chain of Ballistic Missile Early Warning sensors,

“Sophisticated radars play a vital part in the strategy of deterrence and detection.”

It also now plays a part in ‘space surveillance’ - although they’ve not spotted a UFO, says the website...yet.

Do you have any memories of seeing The Golf Balls? Let us know by contacting mieka.smiles@trinitymirror.com